A murder is investigated by both sides of the line, cops and criminals, using opposing methods. But the real line is the morality within each person and how far they will go before they cross it.
Tobias Menzies
Ross (Journalist)
12 episodes
Chiwetel Ejiofor
Jonah Gabriel
7 episodes
Christopher Eccleston
Joseph Bede
7 episodes
Kierston Wareing
Lia Honey
7 episodes
Stephen Rea
Gatehouse
7 episodes
Rafe Spall
Jay Wratten
7 episodes
Eve Best
Petra Mayler
7 episodes
Lesley Sharp
7 episodes
Richard Lintern
7 episodes
Robert Pugh
7 episodes
